Fold away design master



Feb. 16, 1965 F. J. WEHRINGER 3,169,745

FOLD AWAY DESIGN MASTER Filed Aug. 12, 1963 24 ,6) 22 /Z FIG. 1. m /0 4ZZ I10 24 I v 42 /0 E 40 46 22 FIG. 2.

INVENTOR. EPA NA J. WEHR/NGER ATTORNEY United States Patent Office3,169,745 FGLD AWAY DESIGN MASTER Frank J. Wehringer, 217 E. Adele,Anaheim, Calif. Filed Aug. 12, 1963, Ser. No. 301,363 3' Claims. (Cl.248-454) support of the board directly from the floor, and for itsadjustment to diflerent angular positions.

j which comprises sturdy legs and has framing for rigid It is clearthatsuch large boards are complete pieces of drafting room furniturewhich cannot be readily moved or put out of the way, and that the}earlier mentioned small'boards described above are of such nature thatthey are not suitable for large drawings and more permanent use becauseof thelack of rigidity, theirlack of suitability for drafting machine orstraight edge, and because they are not equipped or table. I

Accordingly it isan object of this invention to provide a drafting boardhaving collapsiblesupporting means so that the drafting board may beproperly supported on a to lie in position but fiat upon a desk table ordesk when in use.

Itis another object ofthis-invention to design supporting means for adrafting board of such character that the supporting-means may be}portation' and;storage of the drafting board.

It is another object of this-inventionto provide a-draft ing boardofsuch size andstability as to be suitable for use with; draftingmachines'and permanently installed:

folded for convenient trans straight edges and for thedrafting'ofdrawings of sub-" Q stantial size, and at the same tirneto providecollapsible supporL'ng means for the drafting board which whensupporting the board provide rigid support, but arranged for easycollapsibility of .;the support for proper storage.

it is an object of this invention toproyide' an economic andtroubleefree drafting board supp'orting structure which can becollapsed' for' easy trahsportationend storagej'of the drafting board-"Other objects and-advantagesbf thisinventionwiH beattached drawings inwhicli z 3 Master collapsibledrafting-board or" thi's'in'ven'tionj Icome apparent'upon study of the "specificatiori,"andlthe FIG. 2 is arear elevationalview of the drafting board showing the supportingstructure thereofinposition for support; a

FIG. 3 is a view of.. the: back of the drafting board,

rotated 90, showing the supporting structure in the sup- FIG. 5 is anelevational view of the hinge of FIG. 4'

taken. along the line 55 of FIG. 4;

. 51 porting position in'fiilFlines and in the folded position i i indashed lines; a

FIG. '6 is another elevation of the hinge of FIG'f l taken along theline 66 of FIG. 5; and FIG. 7 is FIG. 4. p In summary, this invention isdirected to a drafting board having at least two "support panels whicharehinged a detail'of the pivot portion of the ends of L onspecial-hinges. These special hinges have stops which limit the openingof the hinge to and a spring to urge the hinge open to theaforementioned stops. .Each of the support panels is mounted on at leasttwo hinges so the support panels may be so opened to substantially 90with respect to the, back of the board, at which point the stops areengaged. 'The support panel hinges contain springs which urge thesupport panels toward the closed position parallel with the back of theboard. Mounted upon each of the support panels by hinges securing itthereto is a stop. Each of these stops is of such configuration as to bebehind the support panel when it is closed, and to hold the supportpanel out against the support panel hinge stops when the support panelis opened andthe stop is in place. The special hinges supporting thestop structure upon the support panel are spring urged toward the openposition and have a stop which limits opening to 90. Accordingly, whenfolded, the stops' and support panels occupy a minimum of space and whenswung into operative positlon they rigidly support the drafting board.

Further in more detailed understanding this inventionwill be obtained bya study of the following portion of edge. 18 is furnished with anupstanding projection 20.

portionof its lengthfto serve as a holder for pencils and other draftingequipment at throughout a substantial aconven'ie'nt position close tothe draftsman. Alter natively t'o the;projection 20, a groove can beformed n the straight edge 18 for the reception of such draftingimplements. The straight edge 18 is maintained.

in position by' suitable Ico'rds Io r wires 22 which pass around pulleys24 mounted on the corners .of the board. The threading of the cord orwire "22arourid: the pulleys 24 such; that :When clips 26, attached tothe straight edge 18, are secured to the appropriate strands of the.cordflorlwirefZ'Z, the straight edge removes up and u down the boardparallelio"its prior position. A spring. 28 in the cord or wire 22maintains tension thereinl 'l The back of the draftingboard top 12 isindicated at 3.0.and itis to this back'that the supporting structure of'thisinven'tion is secured for holding the 5 board in a proper drafting,position. The supporting structure corri' prisesapair of support 7 v 32is. adjacent the. back seer thefdrafting board 1 6.

' The two remaining edges 36 and38' are preferably of differentdir'nensions so that the triangle is.not an isosceles triangle withitsaba'se toward 'the'flb ottom 30 of "the board. ,.As shown,theed'ge'36 islonger thanjthe fedge of 38"and1thusthe edges 36 and 38form diife'rent' angles with respect to the drafting board 16."Accordingly .the raftingl board; '16 st'andsfat different angles whenit is resting on the.edgejiidjas compared,to when it is rest ingon' theshort edge 3 8 of the support panels 3 2 A c cordingly'two differentangles of the board with respect -to the horizontal are. available bythismeans. I

In order to maintain convenience of storage ofthe Fold-awayDesignMaster, the support panels-32 are arranged so that they may be foldedadjacent the back 30 of the drafting board 16. Blocks 40 are secured tothe back 30, and carry hinges 42 ofispecial design.

These hinges are. of such construction and such con figurationthat theyhave an inbuilt stop which pre-Q u D I panels 32 of generally-triangularj config'u ration.- Thelongestedge 3415f the'support panel

1. IN A DRAFTING BOARD; SUPPORT MEANS FOR SAID DRAFTING BOARD, SAIDSUPPORT MEANS INCLUDING FIRST AND SECOND SUPPORT PANELS ADAPTED TOSUPPORT SAID DRAFTING BOARD AT FIRST AND SECOND ANGLES; MEANS ON SAIDSUPPORT PANELS TO REMOVE SAID SUPPORT PANELS FROM SUPPORTING POSITIONWITH RESPECT TO SAID DRAFTING BOARD; AND MEANS ON SAID SUPPORT PANELSFOR MAINTAINING SAID SUPPORT PANELS IN DRAFTING BOARD SUPPORTINGPOSITION, SAID MEANS FOR MAINTAINING SAID SUPPORT PANELS INCLUDING ASTOP HINGEDLY SECURED TO EACH OF SAID SUPPORT PANELS, SAID HINGEDSUPPORT BEING HINGED WITH BUILT IN STOPS TO LIMIT THE OPENING OF SAIDHINGES TO SUBSTANTIALLY RIGHT ANGLES WITH RESPECT TO SAID SUPPORTPANELS, AND A SPRING IN SAID HINGE TO URGE SAID HINGE OPEN AGAINST SAIDHINGE STOP.